Plastic contact bacteria starter for septic tanks



FIG. 1 is a side elevational view of a plastic contact bacteria starter for septic tanks device showing my new design, with all sides being identical to that shown;

FIG. 2 is a front elevational view thereof, taken from the left of FIG. 1; and,

FIG. 3 is a rear elevational view thereof. 

The ornamental design for a plastic contact bacteria starter for septic tanks, as shown and described. 